is not known to have made solid gold cases around the turn of the century, which is when your watch appears to have been made. It is highly likely that your watch case is 14K gold-filled, not solid gold. It's also helpful if you can post (i.e., type out) all the markings that are inside of the case and that are on the movement, especially the movement serial number, in case they can't be seen in the picture(s).

We may be able to identify it by the shape of the plates. Other pictures will help a little, but these are the most important. Clearness and sharpness is important as differences in makes, watch grades or case material markings can be subtle. It would be helpful if you could post pictures of the movement (the 'works') and markings stamped inside of the watch case (you can ignore any 'hand-scratched' characters, they're watch repairers' marks), the clearer and sharper, the better. Your watch movement appears to be a ladies' size movement made by the Hampden Watch Co. Welcome to the NAWCC American Pocket Watch Message Board!

Fahys watch case serial numbers